High Quality Z275 DX51D Gi Cold Rolled Galvanized Carbon Steel Sheet
Galvanized steel plate is the carbon plate that is coated with zinc on the surface. Galvanizing is a popular and efficient way of anti-corrosion, and about one-half of the globe's zinc output is used in this process. This demonstrates the significance of zinc in modern steel protection.
According to different production processes, galvanized sheet can be divided into the following types:
1. Hot-Dip Galvanized Steel Sheet
Hot-dip galvanized steel sheet is the sheet material with the surface covered with a layer of zinc by dipping thin sheet steel into molten zinc at a high temperature. At present, the production of continuous galvanizing is popular; that is, steel rolls run continuously through molten zinc in order to produce galvanized steel sheets that are higher quality, having better corrosion resistance.
2. Galvannealed (Alloyed Galvanized) Steel Sheet
This type is made by the hot-dip method and then heated to around 500°C. Right after galvanizing, a zinc-iron alloy coating is formed. It has excellent paintability and good weldability and is commonly applied to automotive and coated steel.
3. Electro-Galvanized Steel Sheet
Electro-galvanized steel is a type of steel which is produced by electroplating process and has a smooth, uniform, and beautifully ended surface that chromosomes excellent formability. While it has more limited corrosion protection than hot-dip galvanized steel due to its thinner coating, it can be used for light indoor applications.
High Quality Corrosion Resistance
Zinc plating offers excellent resistance to rust, dampness, and severe weather, contributing to a longer service life.
Cost-effective anti-rust treatment
Galvanizing is an economical surface treatment that is commonly employed in building and industrial steel work.
High Drawability and High Processing Performance
It is easy to cut, bend, punch, and roll-form, so it can be used in many kinds of processing and manufacturing.
Coating adhesion and durability are high
The zinc coating is tightly adhered to the steel substrate, providing consistent performance when in use or stored for long periods of time.
Versatile in Use
Can be used for roofs, walling, automotive applications, home appliances, ventilation, and building components.
Construction Industry: Used for roofing sheets, wall panels, ceiling systems, structural components, and building envelopes due to its excellent corrosion resistance.
Automotive Industry: Applied in car body panels, chassis parts, doors, and structural reinforcements to improve durability and rust protection.
Home Appliances: Widely used in refrigerators, washing machines, air conditioners, microwave ovens, and other appliance casings.
Industrial Manufacturing: Suitable for machine enclosures, electrical cabinets, ventilation ducts, storage systems, and industrial equipment housing.
Infrastructure Projects: Used in bridges, highways, tunnels, and public facility structures where long-term weather resistance is required.
Agricultural Applications: Applied in barns, storage silos, greenhouse structures, and farming equipment due to its durability in outdoor environments.
HVAC Systems: Commonly used in air ducts, ventilation systems, and air conditioning components because of its formability and corrosion resistance.
General Fabrication: Ideal for stamping parts, metal enclosures, and custom steel products across various industries.
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Technical Standard
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EN10147, EN10142, DIN 17162, JIS G3302, ASTM A653
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Steel Grade |
Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S350GD, S550GD; SGCC, SGHC, SGCH, SGH340, SGH400, SGH440,
SGH490,SGH540, SGCD1, SGCD2, SGCD3, SGC340, SGC340 , SGC490, SGC570; SQ CR22 (230), SQ CR22 (255), SQ CR40 (275), SQ CR50 (340), SQ CR80(550), CQ, FS, DDS, EDDS, SQ CR33 (230), SQ CR37 (255), SQCR40 (275), SQ CR50 (340), SQ CR80 (550); or Customer’s Requirement |
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Thickness
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customer's requirement
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Width
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according to customer's requirement
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Type of Coating
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Hot Dipped Galvanized Steel(HDGI)
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Zinc Coating
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30-275g/m2
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Surface Treatment
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Passivation(C), Oiling(O), Lacquer sealing(L), Phosphating(P), Untreated(U)
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Surface Structure
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Normal spangle coating(NS), minimized spangle coating(MS), spangle-free(FS)
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Quality
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Approved by SGS,ISO
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ID
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508mm/610mm
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Coil Weight
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3-20 metric ton per coil
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Package |
Water proof paper is inner packing,galvanized steel or coated steel sheet is outer packing , side guard plate,then wrapped by
seven steel belt.or according to customer's requirement |
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Export market
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Europe, Africa, Central Asia, Southeast Asia, Middle East, South America, North America, etc
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| Gauge Thickness Comparison Table | ||||
| Gauge | Mild | Aluminum | Galvanized | Stainless |
| Gauge 3 | 6.08mm | 5.83mm | 6.35mm | |
| Gauge 4 | 5.7mm | 5.19mm | 5.95mm | |
| Gauge 5 | 5.32mm | 4.62mm | 5.55mm | |
| Gauge 6 | 4.94mm | 4.11mm | 5.16mm | |
| Gauge 7 | 4.56mm | 3.67mm | 4.76mm | |
| Gauge 8 | 4.18mm | 3.26mm | 4.27mm | 4.19mm |
| Gauge 9 | 3.8mm | 2.91mm | 3.89mm | 3.97mm |
| Gauge 10 | 3.42mm | 2.59mm | 3.51mm | 3.57mm |
| Gauge 11 | 3.04mm | 2.3mm | 3.13mm | 3.18mm |
| Gauge 12 | 2.66mm | 2.05mm | 2.75mm | 2.78mm |
| Gauge 13 | 2.28mm | 1.83mm | 2.37mm | 2.38mm |
| Gauge 14 | 1.9mm | 1.63mm | 1.99mm | 1.98mm |
| Gauge 15 | 1.71mm | 1.45mm | 1.8mm | 1.78mm |
| Gauge 16 | 1.52mm | 1.29mm | 1.61mm | 1.59mm |
| Gauge 17 | 1.36mm | 1.15mm | 1.46mm | 1.43mm |
| Gauge 18 | 1.21mm | 1.02mm | 1.31mm | 1.27mm |
| Gauge 19 | 1.06mm | 0.91mm | 1.16mm | 1.11mm |
| Gauge 20 | 0.91mm | 0.81mm | 1.00mm | 0.95mm |
| Gauge 21 | 0.83mm | 0.72mm | 0.93mm | 0.87mm |
| Gauge 22 | 0.76mm | 0.64mm | 085mm | 0.79mm |
| Gauge 23 | 0.68mm | 0.57mm | 0.78mm | 1.48mm |
| Gauge 24 | 0.6mm | 0.51mm | 0.70mm | 0.64mm |
| Gauge 25 | 0.53mm | 0.45mm | 0.63mm | 0.56mm |
| Gauge 26 | 0.46mm | 0.4mm | 0.69mm | 0.47mm |
| Gauge 27 | 0.41mm | 0.36mm | 0.51mm | 0.44mm |
| Gauge 28 | 0.38mm | 0.32mm | 0.47mm | 0.40mm |
| Gauge 29 | 0.34mm | 0.29mm | 0.44mm | 0.36mm |
| Gauge 30 | 0.30mm | 0.25mm | 0.40mm | 0.32mm |
| Gauge 31 | 0.26mm | 0.23mm | 0.36mm | 0.28mm |
| Gauge 32 | 0.24mm | 0.20mm | 0.34mm | 0.26mm |
| Gauge 33 | 0.22mm | 0.18mm | 0.24mm | |
| Gauge 34 | 0.20mm | 0.16mm | 0.22mm | |
1. What is DX51D Z275 Galvanized Sheet?
Z275 galvanized steel sheet under the DX51D steel grade is one of the most widely used cold-rolled galvanized steel sheets, especially suitable for moderately corrosive environments.
DX51D Z275 cold-rolled galvanized steel sheet has excellent corrosion resistance and good formability, thanks to its high-quality protective coating of 275g/m², making it widely applicable in construction and industrial applications.
2. What are the main application areas?
Application areas: Roofing, wall panels, HVAC ducts, steel structural frames, household appliances, general processing and manufacturing.
3. What sizes are available?
Thickness: 0.12-3.0 mm
Width: 600-1500 mm
Form: Coil or sheet, custom sizes available
4. What surface treatments are available?
We offer plain Galvanized Steel Plate, ungalvanized steel sheets, oiled galvanized steel sheets, and chromate-galvanized steel sheets.
5. Why Choose Royal Steel Group?
Royal Steel Group provides consistently high-quality galvanized steel sheets at highly competitive prices and with fast delivery, and offers flexible export services to support your construction projects worldwide.












